docs: def handle_details(self, username):
          """ Print user details """
          try:
              user = User.objects.get(username=username)
          except User.DoesNotExist:
              raise CommandError("Unable to find user '%s'" % username)
  
          self.stdout.write("username    : %s" % username)
          self.stdout.write("is_active   : %s" % user.is_active)
          self.stdout.write("is_staff    : %s" % user.is_staff)
          self.stdout.write("is_superuser: %s" % user.is_superuser)
          groups = [g.name for g in user.groups.all().order_by("name")]
          self.stdout.write("groups      : [%s]" % ", ".join(groups))